KINGSTON, Ont. -- Police in Kingston, Ont., say a domestic-disturbance call led officers to the discovery of a child in a marijuana grow-op.

They say officers were called to a home early Monday afternoon, but the man and woman both said the disturbance was just a verbal argument.

Police say the officers learned the woman was babysitting and went upstairs to check on the child's welfare.

The child was found in a playpen in the middle of a hallway where all the bedroom doors were shut.

Concerned there might be other children, the officers opened the doors and allegedly discovered two active marijuana grow-ops.

A 22-year-old man is charged with unlawfully producing a controlled substance.